A method for the production of a turbine blade made of ceramic matrix composite material, use for a turbine blade made of ceramic matrix composite material and turbine blade made of ceramic matrix composite material

摘要

There are a method for producing a turbine blade made of ceramic matrix composite material, a use for a turbine blade made of ceramic matrix composite material and a turbine blade made of ceramic matrix composite material. The method comprises providing a blade preform, which has a dovetail, hollow space, wherein the dovetail hollow space of a dovetail shaft of the blade preform is enclosed, positioning of a dovetail insert within the hollow space, then form the turbine blade made of ceramic matrix composite material in a furnace. The insert has a geometry which is arranged so that, within a dovetail hollow space of the turbine blade made of ceramic matrix composite material, of a blade preform to be used or of two. The insert is a foamed material or a plurality of ceramic matrix composite material layers. The turbine blade made of ceramic matrix composite material has a dovetail shaft and of a dovetail, hollow space, which is surrounded by the dovetail shaft. The dovetail hollow space to receive an insert is disposed and arranged.